The launch date of the second-generation Apple Watch is still unknown – two contradictory reports surfaced lately – but Digitimes‘ sources have confirmed the names of companies that are part of the supply chain securing orders of the upcoming wearable.

Taiwanese Advanced Semiconductor Engineering (ASE) was already responsible for the SiP (system-in-package) modules for the first-generation Apple Watch, and it has secured the majority of SiP orders for the second-generation device, industry sources have informed Digitimes.

The remaining orders are shared between Amkor Technology and STATS ChipPAC, a unit of Jiangsu Changjiang Electronics Technology (JCET), according to the Digitimes report.

Apple has also made other changes in the Watch supply chain: While the first-gen wearable supply chain included Nanya PCB and Kinsus Interconnect Technology, Apple opted only for Kinsus with the second-generation Watch.